Low soil fertility tolerance in landraces and improved common beans genotypes

Simple item page
cg.coverage.countryColombiaen
cg.coverage.iso3166-alpha2COen
cg.coverage.regionSouth Americaen
cg.isijournalISI Journalen
cg.issn1435-0653en
cg.journalCrop Scienceen
cg.reviewStatusPeer Reviewen
cg.subject.ciatBEANSen
cg.subject.ciatGENETIC RESOURCESen
cg.subject.ciatPLANT BREEDINGen
cg.subject.ciatSOIL HEALTHen
dc.contributor.authorSingh, Shree P.en
dc.contributor.authorTerán Santofimio, Henryen
dc.contributor.authorMuñoz Perea, Carlos Germánen
dc.contributor.authorOsorno Gonzalez, JMen
dc.contributor.authorTakegami, JCen
dc.contributor.authorThung, Michael D.en
dc.date.accessioned2014-09-24T08:42:27Zen
dc.date.available2014-09-24T08:42:27Zen
dc.identifier.urihttps://hdl.handle.net/10568/43644
dc.titleLow soil fertility tolerance in landraces and improved common beans genotypesen
dcterms.abstractSoil mineral deficiencies or toxicities adversely affect common bean (Phaseolus vulgaris L.) production worldwide. Cultivars tolerant to low soil fertility (LF) should support sustainable farming systems and reduce production costs and farmers' dependence on fertilizers. Our objective was to identify LF tolerant landraces and improved common bean genotypes. We systematically screened 5000 to 5500 landraces and improved genotypes for LF tolerance at Popayán and Quilichao, Colombia, between 1978 and 1998. Mean LF intensity index across locations for seed yield ranged from 0.35 to 0.68. Average seed yield reduction over five cropping seasons was 53%. Seed yield, biomass, and HI were positively associated in LF and high soil fertility (HF). LF tolerance was identified in eight landraces and 14 improved genotypes. All landraces were from Middle America (MA), belonging to common bean races Durango, Jalisco, and Mesoamerica. All improved genotypes except one (A 36) also possessed characteristics of and involved one or more LF tolerant MA landraces in their pedigree. There was considerable variation for seed, plant, and maturity characteristics among LF tolerant genotypes. In LF, mean seed yield for landraces ranged from 856 kg ha?1 for ‘Apetito’ to 332 kg ha?1 for G 19833. Among improved genotypes, A 774 had the highest (948 kg ha?1) and CAP 4 the lowest (651 kg ha?1) seed yield. Reduction in seed yield due to LF ranged from 31% for A 36 to 63% for CAP 4. All landraces and seven improved genotypes had either a below average or average LF susceptibility index. Use of these LF tolerant landraces and improved genotypes should be maximized in breeding and genetic studies to enhance sustainable farming systems.en
dcterms.accessRightsOpen Accessen
dcterms.issued2003en
dcterms.languageenen
dcterms.subjectphaseolus vulgarisen
dcterms.subjectvarietiesen
dcterms.subjectsoil deficienciesen
dcterms.subjectsoil toxicityen
dcterms.subjectresistance to injurious factorsen
dcterms.subjectsoil chemicophysical propertiesen
dcterms.subjectgenotypesen
dcterms.subjectsoil fertilityen
dcterms.subjectyieldsen
dcterms.subjectvariedadesen
dcterms.subjectdeficiencias del sueloen
dcterms.subjecttoxicidad del sueloen
dcterms.subjectresistencia a agentes dañinosen
dcterms.subjectpropiedades físico-químicos sueloen
dcterms.subjectgenotiposen
dcterms.subjectfertilidad del sueloen
dcterms.subjectrendimientoen
dcterms.typeJournal Articleen

Files

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
singh2003.pdf
Size:
95.27 KB
Format:
Adobe Portable Document Format
Description:
Journal Article
Download

Collections

CIAT Articles in Journals